Bartlet confers with Babish on the legal ramifications of his MS cover-up; Sam has a personal interest in an oil spill off the coast of Delaware; Josh and Donna argue about a loan to Mexico; Toby orders C.J. to flush out a leak in the White House staff, which is far from easy.

Babish menacingly questions CJ and Abbey about their involvement in the MS cover-up while Josh asks Joey Lucas to create a hypothetical poll the gauge the public's reaction; Sam is happy with a projected smaller-than-expected budget surplus; Donna is the only one worried about a Chinese satellite hurling toward the Earth at 2,000 mph.

The staff prepares for the worst as they make arrangements for the public announcement of the President's condition; Sam and Babish grill Abbey about her medical treatment of the President's MS; a crisis erupts in Haiti; Josh deals with two Democratic senators who won't support the administration's suit against tobacco companies; Mrs. Landingham buys her first new car, with tragic consequences.

The Special Prosecutor sets his probe in motion; Sam and Bruno are concerned about the loyalty of a powerful labor leader; Toby and Josh are preoccupied with a congressional battle over the estate tax; Ainsley fixes up Donna with a Republican.

When an American spy submarine suddenly goes silent in hostile North Korea, Bartlet must decide whether to inform the enemy or attempt a secret rescue operation; Abbey learns her past malpractice suits might compromise Bartlet's criminal investigation; Toby meets with a representative from an appropriations committee who wants to funnel money away from Congress's funding of avant-garde artists.

As everyone but Josh causes Santos to question his choice of Leo as his running mate, Bartlet's investigation into the dangerous press leak continues. Also C.J. gets interviewed by Babish and Donna approaches Josh for a job.

The White House is trying to cope with the revelation of the identity of the leaker and Babish's questioning of Toby convinces him that he must get his lawyer. Lou persuades Josh to get Santos to clean house with his campaign staff. Kate finally reaches Charles Frost and confronts him about what he told to C.J. and a few other things about his personality in general. The Bartlets hear Ellie's heapful of "good" and "bad" news.